{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp12_substrate_denial72_20260805","research_id":"eoa_inverse_innovation_exp12_light_screen_20260805","cell_id":"agentic_control_loop_design__computer_science","search_lanes":{"direct_problem_and_intervention":{"queries":["server rack passive temperature controlled damper bimetal louver inlet cold air","server rack automatic passive damper temperature bimetallic product"],"source_ids":["SRC3","SRC4"],"no_result_note":null},"synonyms_and_historical_terms":{"queries":["bimetal thermostatic air damper patent temperature responsive louver","thermostatic air register bimetal self powered damper product"],"source_ids":["SRC3"],"no_result_note":null},"products_practices_and_standards":{"queries":["data center server inlet hotspot recirculation bypass airflow official guidance","site:ashrae.org data center equipment inlet temperature recirculation bypass air guidance","server rack automatic passive damper temperature bimetallic product"],"source_ids":["SRC1","SRC2","SRC4"],"no_result_note":null},"component_combination":{"queries":["site:patents.google.com data center bimetallic damper PDU exhaust storage volume 102","server rack passive temperature controlled damper bimetal louver inlet cold air"],"source_ids":["SRC3","SRC4"],"no_result_note":null}},"sources":[{"source_id":"SRC1","title":"Chapter 20: Data Centers and Telecommunications Facilities","publisher":"ASHRAE","url":"https://handbook.ashrae.org/Handbooks/A19/IP/a19_ch20/a19_ch20_ip.aspx","source_type":"OFFICIAL_GUIDANCE","claims_supported":["Hot equipment exhaust can recirculate to equipment intakes and raise inlet temperature.","Cool supply air can bypass equipment, reducing cooling-system effectiveness.","Blanking panels, aisle arrangements, containment, special racks, and air deflectors are established airflow-management practices."]},{"source_id":"SRC2","title":"Thermal Guidelines and Temperature Measurements in Data Centers","publisher":"Lawrence Berkeley National Laboratory","url":"https://datacenters.lbl.gov/sites/default/files/FINAL%20Thermal%20Guidelines%20and%20Temp%20Measurements%209-15-2020.pdf","source_type":"OFFICIAL_GUIDANCE","claims_supported":["Data centers can experience localized equipment-intake hotspots caused by exhaust recirculation.","Excess supply creates bypass air, while insufficient supply permits recirculation and elevated inlet temperatures.","Air-management interventions must balance thermal conditions, airflow, energy performance, reliability, and equipment-intake temperature limits."]},{"source_id":"SRC3","title":"Bimetallic Damper Device (US20170097170A1)","publisher":"Google Patents","url":"https://patents.google.com/patent/US20170097170A1/en","source_type":"OTHER","claims_supported":["A data-center-specific prior disclosure places bimetallic airflow-obstructing members in a duct.","Heating directly bends the members to increase an opening without a motor, processor, or electronic sensor.","The disclosed device releases warm PDU exhaust while limiting loss of cool air, contrasting with static openings and closely matching the proposal's passive temperature-to-aperture architecture."]},{"source_id":"SRC4","title":"Temperature Control VAV Damper","publisher":"ZTFLOOR","url":"https://ztfloor.in/data-center-product/","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial data-center product measures incoming temperature at a rack face and adjusts a VAV damper to control airflow.","The product addresses varying rack loads, peak cooling needs, bypass air, and overcooling at partial load.","Its operative control is electronic and fan-assisted rather than self-powered thermomechanical actuation."]}],"problem_evidence":{"status":"SUPPORTED","finding":"Official guidance directly supports the proposed tension: exhaust recirculation produces localized equipment-inlet hotspots, whereas excess supply produces wasteful bypass air. It also confirms that inlet conditions—not merely room averages—matter. The evidence does not establish that every rack needs adaptive per-server control.","source_ids":["SRC1","SRC2"]},"closest_prior_art":[{"name":"Bimetallic Damper Device (US20170097170A1)","source_ids":["SRC3"],"overlap":"Same application domain and core physical architecture: local air temperature directly deforms bimetallic members in a duct, changing airflow aperture without powered sensing or actuation and avoiding the inefficiency of a static opening.","remaining_difference":"It controls removal of warm PDU exhaust into a return volume rather than admission of cold-aisle air through a sealed duct to one server inlet; the opened disclosure also does not establish the proposal's spring-return fail-open linkage, damping, server-inlet stops, or neighboring-inlet validation."},{"name":"ZTFLOOR Temperature Control VAV Damper","source_ids":["SRC4"],"overlap":"Uses rack-face incoming-air temperature to vary supplied airflow under changing rack loads, explicitly addressing the same peak-protection versus low-load bypass/overcooling tradeoff.","remaining_difference":"It is an electronically controlled, fan-assisted VAV system rather than a bimetal-powered local server-inlet mechanism."},{"name":"Conventional data-center airflow separation and containment","source_ids":["SRC1","SRC2"],"overlap":"Blanking panels, containment, aisle layout, deflectors, and airflow balancing address inlet hotspots, recirculation, and bypass.","remaining_difference":"These sources do not disclose unpowered proportional modulation of a dedicated selected-server cold-air aperture by that server's local inlet temperature."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"A narrow, falsifiable claim remains: at a selected server inlet, a sealed cold-aisle duct using inlet-exposed bimetal actuation, bounded travel, damping, and mechanical fail-open return can outperform matched fixed apertures across varying loads by reducing inlet-temperature excursions without unacceptable bypass, pressure-drop, oscillation, or neighboring-inlet penalties. The broad ideas of temperature-responsive rack airflow control and passive bimetallic data-center dampers do not remain distinct.","contrastive_claim_falsifier":"The claim fails if matched mock-up trials show no repeatable target-inlet improvement over fixed apertures, response outside the required time window, hunting or binding, failure to return fail-open, excessive bypass or pressure drop, or predefined thermal or airflow harm to neighboring inlets. It would also lose contrast if an earlier disclosure is found combining a dedicated server-inlet cold-air duct with substantially the same passive bimetal linkage and safeguards.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered direct proposal language, older thermostatic and bimetal-damper terminology, official data-center practices, a commercial rack-temperature VAV product, and combinations of data-center ducting with passive thermomechanical actuation. Four opened sources span four publishers and include official and first-party materials.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"Two official sources directly document inlet heating from recirculation, localized hotspots, and inefficient bypass caused by excess supply airflow.","source_ids":["SRC1","SRC2"]},"distinct_testable_claim":{"status":"PASS","rationale":"Despite close component-level art, a narrower server-inlet implementation and comparative performance claim remains operationally distinct and measurable.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"bounded_next_test":{"status":"PASS","rationale":"A non-production rack mock-up can reversibly compare the prototype with minimum, midpoint, and maximum fixed apertures over bounded heat-load and recirculation steps while recording inlet and neighboring temperatures, airflow, pressure drop, travel, response time, hysteresis, oscillation, binding, and fail-open behavior.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"No source reveals an obvious stop to guarded mock-up testing. Facilities authority can retain configuration control, testing can avoid production equipment and fire/smoke boundaries, and preset thermal, airflow, oscillation, binding, and fail-open criteria provide halt and rollback conditions. Production use would require separate equipment, material, fire, smoke, and site review.","source_ids":["SRC1","SRC2"]}},"screen_survival":true,"world_novelty_boundary":"This bounded four-source screen cannot establish world novelty, patentability, market size, prevalence, demand, expert acceptance, realized value, superiority, or effect magnitude. It found close data-center bimetallic-damper art and an electronic rack-temperature VAV product, but the retained sources did not disclose the complete proposed combination of a selected-server cold-air inlet duct, inlet-exposed thermomechanical actuation, bounded and damped travel, mechanical fail-open return, and neighboring-inlet validation."}